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CAT C15 /6NZ trouble continues

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by truck 307, Dec 20, 2017.

Page 27 of 34
  1. Jan 13, 2019 #261
    Rideandrepair

    Rideandrepair Road Train Member

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    Need a Canadian Driver that runs in the states to relay pkg
     
    Rideandrepair, Jan 13, 2019
    Rideandrepair, Jan 13, 2019
    #261
    Dino soar, Diesel Dave and bigguns Thank this.
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  3. Jan 13, 2019 #262
    bigguns

    bigguns Road Train Member

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    That would work with some coordination but @truck 307 would need to set it up with a trustworthy individual on his end so I get my ecm returned to me.
     
    bigguns, Jan 13, 2019
    bigguns, Jan 13, 2019
    #262
    Oxbow and SAR Thank this.
  4. Jan 13, 2019 #263
    pushbroom

    pushbroom Road Train Member

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    If im not mistaken, this is the third ecm on this truck that has done the same thing? The original one, a loaner used one, and then the most current new one that got installed?
    Ecm parameters cant cause a missfire. Copying over the progammable parameters will not cause any issues. Im assuming the base file would have been downloaded fresh from Cat.
    The most programable parameters can do is limit rpm in each gear. For the ecm to cause a missfire it would have to be sent bad information.
    Injector drivers can fail, but once they fail they stay dead. Also very highy unlikely 3 ecms have the exact same issues.
     
    pushbroom, Jan 13, 2019
    pushbroom, Jan 13, 2019
    #263
    wore out, Oxbow, spsauerland and 2 others Thank this.
  6. Jan 14, 2019 #265
    truck 307

    truck 307 Light Load Member

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    Thanks all for support.
    Yes I've had 3 ECM's, each running my original file as transferred from my original ECM which could be the issue.
    Again this past weekend I started the truck a few times , putting it in / out of my shop for minor things ( lights replaced, grease it etc..)
    Now, as expected, all day ( so far) all running tip top. This is always the case after I start / stop the cold engine on the weekend and Put it to work Monday .
    Get home 1am Tuesday and it sits 10 hour's or so before I leave again.
    Tuesday and every day thereafter it stumbles pop's and power very low from the get go , and that's how it runs all day.
    In warmer / summer temps my engine produces too much heat and my ( near new) rad struggles to keep temps under control as power is low and chugging etc is very prevalent under mild grade pulling in the last 3 gears, and I can't use 18th gear loaded as it just won't even hold road speed.
    It's as though my ECM isn't " in the know" what fuel is to be put to the injectors ( which CAT replaced all 6 late last year )
    No smoke out the pipes. Just violent popping and stumbling, enough to back off the big nut on rear tail of tranny, and cause rear tranny seal to leak .
    And besides my tranny being only one year old when I got this truck 30 months ago, I had it pulled, torn down and checked. Last year I had it completely replaced with a brand new tranny after CAT tried passing the buck saying it was tranny related, but then acknowledged it was engine related after I spent $7k.
    What a challenge.
    Glad I've got you all in support.
     
    truck 307, Jan 14, 2019
    truck 307, Jan 14, 2019
    #265
    Feedman, Oxbow and SAR Thank this.
  8. Jan 14, 2019 #265
    tony97905

    tony97905 Road Train Member

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    I've heard stories about tooling like drill bits and the like being stuck in passageways of cylinder heads and causing a myriad of issues. I'm beginning to wonder if something along this line is your issue. It would limit fuel flow/volume when you need it the most, top 3 gears, low power, engine overheating....but it doesn't explain the Monday "cure" you described.
     
    tony97905, Jan 14, 2019
    tony97905, Jan 14, 2019
    #265
    Feedman and SAR Thank this.
  9. Jan 15, 2019 #267
    truck 307

    truck 307 Light Load Member

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    Ya. It's bizarre that's for sure.
    Today it ran tip top, not a hickup not a stumble. And it's always after the truck doesn't work for a couple days yet was started 2x or more during. And when in a shop for a day or two ( most likely for the same reason, they started it a time or two )
    So many times I drove out of CAT after they worked on it thinking " ya..it's finally fixed".....NOT !!
    Mechanical problems don't fix themselves in such a manner, electrical or memory related ( ECM) just might be the cause.
    O what a celebration it will be ....one day.
     
    truck 307, Jan 15, 2019
    truck 307, Jan 15, 2019
    #267
  10. Jan 15, 2019 #267
    Rideandrepair

    Rideandrepair Road Train Member

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    I’m not good with electrical diagnosis aside from what I can see visually and repair. But seems it has to be a wire in harness somewhere.The heat off these newer engines cause havoc especially on injector harnesses getting brittle at 1 yr old sometimes. Gotta be a wire somewhere. Mr Obvious strikes again!!!
     
    Rideandrepair, Jan 15, 2019
    Rideandrepair, Jan 15, 2019
    #267
  11. Jan 15, 2019 #268
    Rideandrepair

    Rideandrepair Road Train Member

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    I can get it to Detroit. As long as it’s east of Ms river Don’t know how far from Windsor / Detroit OP is, but maybe an option. I sure wouldn’t trust fed ex with it. How much would UPS cost? Never heard of that being a problem. Maybe he’s way up north
     
    Rideandrepair, Jan 15, 2019
    Rideandrepair, Jan 15, 2019
    #268
    bigguns Thanks this.
  12. Jan 15, 2019 #269
    bigguns

    bigguns Road Train Member

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    @truck 307 explained in detail what would need to done to cross ship an ecm. I suspected that to Ontario it would be ridiculously expensive. He confirmed that.
     
    bigguns, Jan 15, 2019
    bigguns, Jan 15, 2019
    #269
    Feedman and SAR Thank this.
  13. Jan 15, 2019 #270
    Rideandrepair

    Rideandrepair Road Train Member

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    A quick trip across the boarder in a 4 wheeler. Pretty common thing up here. People do it everyday
     
    Rideandrepair, Jan 15, 2019
    Rideandrepair, Jan 15, 2019
    #270
    Feedman and bigguns Thank this.
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